title: Incorporation of clustering effects for the Wilcoxon rank sum test: a large-sample approach.
mesh_terms: D001699:Biometry / Q000379:methods; D016000:Cluster Analysis; D018849:Controlled Clinical Trials as Topic; D003930:Diabetic Retinopathy / Q000188:drug therapy; D006801:Humans; D007093:Imidazoles / Q000627:therapeutic use; D048289:Imidazolidines; D015233:Models, Statistical; D018709:Statistics, Nonparametric
chemical_list: D007093:Imidazoles; D048289:Imidazolidines; C026411:sorbinil